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Reduce patch sections space of DATEL platform (#108)

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This commit is contained in:
Edoardo Lolletti
2026-01-12 21:22:41 +01:00
committed by GitHub
parent 9d21940b60
commit 08cf835b05
4 changed files with 100 additions and 40 deletions
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53
arm9/source/patches/platform/datel/DatelWriteSdPatchCode.s
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@@ -29,7 +29,10 @@ datel_writeSectorSdhcLabel:
movs r1, DATEL_SDIO_CMD25_WRITE_MULTIPLE_BLOCK
movs r2, #1
ldr r7, datel_SDWriteMultipleSector_SpiSendSDIOCommand
bl datel_SDWriteMultipleSector_Interwork
@ call datel_readSpiByte
mov lr,pc
mov pc,r7
bne CMD25_not_ok
@ r6 contains datel_SDWriteMultipleSector_WaitSpiByteTimeout
@@ -49,11 +52,15 @@ write_next_sector:
@ Send start token
movs r0, DATEL_SPI_MULTI_BLOCK_WRITE_TOKEN
bl datel_SDWriteMultipleSector_InterworkR1 @ call datel_readWriteSpiByte
@ call datel_readWriteSpiByte
mov lr,pc
mov pc,r1
write_next_byte:
ldrb r0, [r4, r5]
bl datel_SDWriteMultipleSector_InterworkR1 @ call datel_readWriteSpiByte
@ call datel_readWriteSpiByte
mov lr,pc
mov pc,r1
adds r5, #1
@ Shifting left by 0x17 will set the Zero flag if the number that was shifted is a multiple
@@ -61,11 +68,17 @@ write_next_byte:
lsls r0, r5, #0x17
bne write_next_byte
@ write dummy crc
bl datel_SDWriteMultipleSector_Interwork @ call datel_readSpiByte
bl datel_SDWriteMultipleSector_Interwork @ call datel_readSpiByte
@ write dummy crc (ignore result)
@ call datel_readSpiByte
mov lr,pc
mov pc,r7
@ call datel_readSpiByte
mov lr,pc
mov pc,r7
bl datel_SDWriteMultipleSector_Interwork @ call datel_readSpiByte
@ call datel_readSpiByte
mov lr,pc
mov pc,r7
@ we check if the lower nibble is equal to DATEL_SD_WRITE_OK
subs r0, DATEL_SD_WRITE_OK
@@ -73,7 +86,9 @@ write_next_byte:
bne write_command_failed
@ Wait for card to write data
bl datel_SDWriteMultipleSector_InterworkR6 @ call datel_waitSpiByteTimeout
@ call datel_waitSpiByteTimeout
mov lr,pc
mov pc,r6
beq sector_write_timeout_expired
@ r3 holds the total number of bytes to write
@@ -82,13 +97,21 @@ write_next_byte:
@ send stop token
movs r0, DATEL_SPI_END_MULTI_BLOCK_WRITE
bl datel_SDWriteMultipleSector_InterworkR1 @ call datel_readWriteSpiByte
@ call datel_readWriteSpiByte
mov lr,pc
mov pc,r1
@ send 1 byte clock
bl datel_SDWriteMultipleSector_Interwork @ call datel_readSpiByte
bl datel_SDWriteMultipleSector_InterworkR6 @ call datel_waitSpiByteTimeout
@ call datel_readSpiByte
mov lr,pc
mov pc,r7
@ call datel_waitSpiByteTimeout
mov lr,pc
mov pc,r6
@ pop {r1-r7, pc}
CMD25_not_ok:
@@ -97,12 +120,6 @@ sector_write_timeout_expired:
@ movs r0, #0
pop {r1-r7, pc}
datel_SDWriteMultipleSector_Interwork:
bx r7
datel_SDWriteMultipleSector_InterworkR6:
bx r6
datel_SDWriteMultipleSector_InterworkR1:
bx r1
.balign 4
.pool